Oxyhalogen−Sulfur Chemistry: Nonlinear Oxidation Kinetics of Hydroxymethanesulfinic Acid by Acidic Iodate
Publication type: Journal Article
Publication date: 2004-03-04
scimago Q2
wos Q2
SJR: 0.634
CiteScore: 4.8
Impact factor: 2.8
ISSN: 10895639, 15205215
Physical and Theoretical Chemistry
Abstract
The oxidation of hydroxymethanesulfinic acid, HMSA, by acidic iodate has been studied by spectrophotometric techniques. The reaction presents clock reaction characteristics in which in excess iodate conditions there is an initial quiescent period that is followed by a rapid production of iodine. The induction period before formation of iodine is inversely proportional to the iodate concentrations and the concentrations of acid to the second order. Iodide ions have a strong catalytic effect on the rate of the reaction by reducing the duration of the induction period. The stoichiometry of the reaction is dependent on the ratio of oxidant to reductant. In excess HMSA conditions the stoichiometry was deduced to be 3HOCH2SO2H + 2IO3- → 3HCHO + 3SO42- + 2I- + 6H+ whereas in excess iodate and after prolonged standing the stoichiometry is 6IO3- + 5HOCH2SO2H → 5SO42- + 5HCOOH + 3I2 + 4H+ + 3H2O. The mechanism is dominated by the standard oxyiodine kinetics that involve the initial formation of the reactive oxyiodi...
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11
Total citations:
11
Citations from 2024:
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(9.09%)
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Ojo J. F. et al. Oxyhalogen−Sulfur Chemistry: Nonlinear Oxidation Kinetics of Hydroxymethanesulfinic Acid by Acidic Iodate // Journal of Physical Chemistry A. 2004. Vol. 108. No. 13. pp. 2457-2463.
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Ojo J. F., Otoikhian A., Olojo R., Simoyi R. H. Oxyhalogen−Sulfur Chemistry: Nonlinear Oxidation Kinetics of Hydroxymethanesulfinic Acid by Acidic Iodate // Journal of Physical Chemistry A. 2004. Vol. 108. No. 13. pp. 2457-2463.
Cite this
RIS
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TY - JOUR
DO - 10.1021/jp037140q
UR - https://doi.org/10.1021/jp037140q
TI - Oxyhalogen−Sulfur Chemistry: Nonlinear Oxidation Kinetics of Hydroxymethanesulfinic Acid by Acidic Iodate
T2 - Journal of Physical Chemistry A
AU - Ojo, Jonathan F.
AU - Otoikhian, Adenike
AU - Olojo, Rotimi
AU - Simoyi, Reuben H.
PY - 2004
DA - 2004/03/04
PB - American Chemical Society (ACS)
SP - 2457-2463
IS - 13
VL - 108
SN - 1089-5639
SN - 1520-5215
ER -
Cite this
BibTex (up to 50 authors)
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@article{2004_Ojo,
author = {Jonathan F. Ojo and Adenike Otoikhian and Rotimi Olojo and Reuben H. Simoyi},
title = {Oxyhalogen−Sulfur Chemistry: Nonlinear Oxidation Kinetics of Hydroxymethanesulfinic Acid by Acidic Iodate},
journal = {Journal of Physical Chemistry A},
year = {2004},
volume = {108},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/jp037140q},
number = {13},
pages = {2457--2463},
doi = {10.1021/jp037140q}
}
Cite this
MLA
Copy
Ojo, Jonathan F., et al. “Oxyhalogen−Sulfur Chemistry: Nonlinear Oxidation Kinetics of Hydroxymethanesulfinic Acid by Acidic Iodate.” Journal of Physical Chemistry A, vol. 108, no. 13, Mar. 2004, pp. 2457-2463. https://doi.org/10.1021/jp037140q.